Battery charger



FIG. 1 is a front perspective veiw of a battery charger showing my new design;

FIG. 2 is a rear perspective view of FIG. 1;

FIG. 3 is a front elevational view of FIG. 1;

FIG. 4 is a rear elevational view of FIG. 1;

FIG. 5 is a left side elevational view of FIG. 1. The right side is a mirror image of the left side;

FIG. 6 is a top plan view of FIG. 1; and,

FIG. 7 is a bottom plan view of FIG. 1. 

The ornamental design for a battery charger, as shown and described. 